Results/Photos

Date: Sept. 27, 2026 Participant: Trinity Chastain #27285 Race: 2026 Boulderthon Half Marathon Distance: 13.1 miles

Steady Early Miles Power a Strong Half Marathon Finish Trinity Chastain finished the half marathon in 1:53:16, an overall pace of 8:38 per mile. She opened with excellent control, holding between 8:12 and 8:17 per mile through the first six miles. The middle stretch cooled slightly, with miles 7 through 10 settling into the 8:20s9:00 range, and mile 11 saw a marked dip to 10:13. She responded well, closing out miles 12 and 13 at 8:51 and 8:32 respectively to bring the race home with composure. Her steady first six miles stand out as the strongest stretch of the day, a pace band tight enough to anchor the whole effort. That opening rhythm came at altitude, in a city sitting above 5,000 feet, before carrying her into the finish on the Pearl Street Mall in downtown Boulder.